"The Devil Wears Prada" is one of the fashion crowd's favorite flicks, as it's allegedly based on Vogue editrix Anna Wintour and her assistant. The plot follows Andrea Sachs (Anne Hathaway) as a frumpy aspiring journalist who takes a job at Runway, a top fashion magazine. After coworker Nigel (Stanley Tucci) takes her under his wing, she emerges in epic designer duds from Chanel and Dolce & Gabbana—along with a new outlook on life.

"Mean Girls" follows high school newcomer Cady Heron (Lindsay Lohan's only truly memorable role) as she navigates adolescence after growing up in Africa and being home-schooled. As she meets the title characters, we see Cadyditch her simple-girl attire in favor of every bad early-Aughts trend, from Juicy hoodies to excessive bronzer and lip gloss.

"Thirteen" follows Tracy (Evan Rachel Wood) as she falls in with the wrong crowd in middle school. At the beginning of the film, she favors hoodies and backpacks, but thanks to her new group of friends, she begins embracing crop tops, tongue rings and low-rise jeans.

In what might be the mother of all makeover flicks, "Pretty Woman" featured a little-known Julia Roberts as an L.A. prostitute who—with the help of a wealthy businessman (Richard Gere)—literally transforms from streetwalker to stunning. That Rodeo Drive shopping scene is still one of our favorite movie moments!

As if we'd forget one of the most iconic teen movies of all time, "Clueless" features a pretty epic (and fabulously '90s) makeover. Cher (Alicia Silverstone) takes Tai (Brittany Murphy) under her wing in order to transform her from the San Fernando Valley's biggest proponent of grungy flannel, to a chic Rodeo Drive dweller.

"She's All That—the '90s flick based on the classic play "Pygmalion"—follows popular jock Zack Siler (Freddie Prinze, Jr.), who sets out to turn art geek Laney Boggs (Rachael Leigh Cook) into the prom queen. She ultimately ends up losing to the "popular" girl, but ditching her glasses and embracing a red lip made a major difference.

The big transformation doesn't come until the end of "Grease," but it's still one worth mentioning. Good girl Sandy (Olivia Newton-Johnson) prefers preppy duds—that is until Danny Zuko (John Travolta) comes along. In order to win the affections of the leather- wearing greaser, Sandy resorts to skin-tight pants, leather, cigarettes, and some serious curls.

In iconic 1980s teen flick "The Breakfast Club," oddball Allison (Ally Sheedy) keeps to herself and favors a classic goth look. By the end, she's transitioned into a preppy goddess to impress a jock with whom she spent the day in detention.

Teen favorite "Drive Me Crazy" is based off of a book called How I Created My Perfect Prom Date, and that's exactly what happens in this flick. In an effort to make their exes jealous, Nicole (Melissa Joan Hart) makes over Chase (Adrian Grenier) into the perfect man. He ditches his boring high school threads, and moves onto mature "man" clothes like cardigans and collars.

Ever since Cinderella ditched those rags and threw on a ball gown and a pair of glass slippers, movie audiences have fallen for the beloved transformation storyline, so it’s not a bit surprising that countless modern makeover films like “The Devil Wears Prada,” “Mean Girls,” and even bad girl drama “Thirteen” have been so successful. After all, who doesn’t love seeing starlets like Anne Hathaway and Lindsay Lohan go from drab to fab during the course of 90 minutes?

As serious fashion (and film) fans who love nothing more than observing characters’ style evolution, we can’t get enough of big-screen makeovers. That’s why we chose 10 of our all-time favorites in the gallery above—and included before and after shots for full effect!

Click through and let us know: Which on-screen transformation was your favorite?